QtBase_5.5_Integration #2278: SUCCESS Tested changes (refs/builds/5.5_1449856882): http://codereview.qt-project.org/142398 [PS7] - QLockFile: decide on locking strategy per path http://codereview.qt-project.org/143302 [PS1] - Fix a crash when calling QOpenGLTexture::setData with a null QImage.